Crusher with adjustable crushing roller gap

Abstract

The present application provides a crusher with adjustable crushing roller gap, which relates to the field of crushers and includes a chassis, a transmission assembly is fixedly installed on the back of the chassis, and a motor is fixedly installed on the outside of the transmission assembly. In order to solve the problem that in the prior art, the manual or spiral mechanism adjusts the position of the crusher's movable roller to adjust the roller gap, the labor intensity of the workers is high, the roller gap control is not accurate, the system is unstable, and it is particularly unsuitable for working occasions where the crusher's discharge particle size changes frequently, the present application uses a first electric cylinder to drive the drive rod in the crushing assembly to move, so that the drive rod squeezes the extrusion block, so that the extrusion block extends outward, and then adjusts the distance between two adjacent extrusion blocks, and adjusts the height of the protrusion to adjust the distance between the crushing rollers, and achieves fine-tuning, so that the crusher's discharge particle size can be adjusted according to demand.

Description

Technical Field

[0001] The invention relates to the field of crushers, in particular to a crusher with adjustable crushing roller gap. Background Art

[0002] Crusher with adjustable crushing roller gap usually adopts double roller structure, in which one roller is fixed and the other roller can be moved or adjusted. This design enables the crusher to flexibly adjust the distance between rollers, so as to control the crushing particle size of the material. The double roller structure not only improves the crushing efficiency, but also ensures the uniform force of the material during the crushing process, reduces the wear of the crusher and prolongs the service life. However, manual or spiral mechanism adjusts the position of the movable roller of the crusher, which has high labor intensity for workers, inaccurate roller gap control and unstable system operation.

[0003] For example, the Chinese invention patent (application number: CN201910174409.8) discloses a "crusher with adjustable crushing roller gap". Its specification discloses: At present, manual or spiral mechanisms are usually used to adjust the position of the crusher's movable roller to adjust the roller gap. After the roller gap adjustment is completed, the movable roller is positioned using a positioning stop. This type of roller gap adjustment requires high labor intensity for workers, inaccurate roller gap control, and unstable system operation. It is particularly unsuitable for working environments where the crusher's discharge particle size often changes. The existing overload concession device is a pressure sensor that detects the pressure of the hydraulic cylinder. If the pressure is too high, the reversing valve is adjusted to force concession. Such an adjustment first has a delay and is not automatic, so it cannot be concessioned at the first time. Secondly, this may cause the movable roller to retreat excessively, resulting in an excessive gap. This overload concession device is not suitable for crusher overload protection; the above patent can prove the defects of the prior art.

[0004] Therefore, we make improvements on this and propose a crusher with adjustable crushing roller gap. Summary of the invention

[0005] The purpose of the present invention is to adjust the position of the movable roller of the crusher by adjusting the position of the manual or spiral mechanism to achieve roller gap adjustment, which has high labor intensity for workers, inaccurate roller gap control, and unstable system operation, and is particularly unsuitable for working occasions where the particle size of the crusher output changes frequently.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a crusher with adjustable crushing roller gap to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] A crusher with adjustable crushing roller gap, comprising a chassis, a transmission assembly fixedly mounted on the back of the chassis, a motor fixedly mounted on the outside of the transmission assembly, a base fixedly mounted on the bottom of the chassis, a low material level sensor provided at the middle of the inner cavity wall of the chassis, a pair of crushing assemblies rotatably mounted at the middle of the inner cavity of the chassis, a first electric cylinder fixedly mounted on the front of the chassis, a top plate fixedly mounted on the telescopic end of the first electric cylinder, fixed blocks symmetrically provided on both sides of the first electric cylinder and fixedly mounted on the front of the chassis, and a connecting ring fixedly connected to the inner side of the fixed block;

[0009] The crushing assembly comprises two crushing rollers, the circumferential surface array of the crushing rollers is provided with mounting grooves, the interior of the mounting grooves is slidably clamped with extrusion blocks, the extrusion blocks are connected to the mounting grooves through a return spring and support the extrusion blocks inwardly, the middle part of the crushing roller is slidably sleeved with a driving rod, the surface circumferential array of the driving rod is provided with an extrusion plate, the bottom of the extrusion block is provided with a docking groove, the extrusion plate is slidably clamped on the inner side of the docking groove, the crushing roller is rotatably sleeved on the outer side of the connecting ring, and the outer ends of the two driving rods are rotatably connected to the rods on the inner sides of the two ends of the top plate through bearings;

[0010] The transmission assembly is connected to the two crushing rollers, and the top plate drives the driving rod to move inward, and the extrusion block is squeezed outward through the extrusion plate, so that the distance between the extrusion blocks of two adjacent crushing assemblies can be finely adjusted.

[0011] As a preferred technical solution of the present application, a groove is provided in the middle of the extrusion block, the reset spring is fixedly connected inside the groove, and the other end of the reset spring is fixedly connected inside the mounting groove provided on the surface of the crushing roller.

[0012] As a preferred technical solution of the present application, a limited step ring is fixedly installed on the inner side of the connecting ring, and a telescopic block is provided on the inner sliding sleeve of the connecting ring at one end of the driving rod close to the connecting ring. The extrusion plate is magnetic and attracts the telescopic block inward. Under the action of centrifugal force, the telescopic block extends outward and engages with the inner side of the limited step ring.

[0013] As a preferred technical solution of the present application, a U-shaped expansion groove is provided in a circumferential array on the surface of the crushing roller, a positioning rod is provided inside the expansion groove, and the positioning rod is adapted to the shape and size of the expansion groove, and a fixing hole is provided on the top of the side of the chassis for rotating and clamping the crushing roller to fit the positioning rod.

[0014] As a preferred technical solution of the present application, the positioning rod is magnetic and is always engaged in the fixing hole at the top under the action of magnetic attraction to fix the crushing roller.

[0015] As a preferred technical solution of the present application, shaking assemblies are provided on both sides of the crushing assembly, and the shaking assembly includes two material discharge side seats, and the two material discharge side seats are respectively fixedly mounted on both sides of the inner cavity of the chassis, and the top of the material discharge side seat is movably hinged with a shaking plate, and the bottom end of the shaking plate overlaps the surface of the crushing assembly.

[0016] As a preferred technical solution of the present application, a telescopic plate is slidably clamped at the bottom of the shaking plate, a second electric cylinder is obliquely provided at the middle of the inner cavity of the unloading side seat, the top of the second electric cylinder is movably hinged to the bottom of the telescopic plate, a pair of connecting arc plates are movably hinged on the inner side of the telescopic plate, and two adjacent connecting arc plates are movably hinged.

[0017] As a preferred technical solution of the present application, the connecting arc plate is an electromagnet, which sinks and fits on the surface of the crushing roller and contacts with the positioning rod inside the crushing roller. The connecting arc plate sinks to the bottom and generates the same magnetism as the positioning rod, which repels the positioning rod downward, thereby automatically controlling the rotation and stop of the crushing roller.

[0018] As a preferred technical solution of the present application, the second electric cylinder extends to control the shaking plate to move upward and unfold, so that the telescopic plate slides upward, extends and unfolds, so that the area of ​​the telescopic plate and the shaking plate after unfolding is wide enough to cover the top of the chassis.

[0019] As a preferred technical solution of the present application, when the crushing roller rotates, it drives the driving rod to rotate synchronously with the telescopic block. The telescopic block automatically extends outward under the action of centrifugal force. When the driving rod stops rotating, the telescopic block automatically adheres to the surface of the driving rod under the magnetic adsorption of the driving rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the scheme of this application:

[0022] 1. In order to solve the problems in the prior art that the manual or spiral mechanism adjusts the position of the crusher's movable roller to adjust the roller gap, the labor intensity of the workers is high, the roller gap control is not accurate, the system is unstable, and it is particularly not suitable for working occasions where the crusher's discharge particle size often changes, the present application uses a crushing assembly to drive the drive rod in the crushing assembly to move by using a first electric cylinder, so that the drive rod squeezes the extrusion block, so that the extrusion block extends outward, and then adjusts the distance between two adjacent extrusion blocks, and adjusts the distance between the crushing rollers by adjusting the height of the protrusion, so as to achieve fine adjustment, and then the crusher's discharge particle size can be adjusted according to demand;

[0023] 2. In order to solve the problem in the prior art that the equipment is placed outdoors for a long time, and a large amount of rainwater enters the equipment in rainy weather, causing the parts in the equipment to rust and be damaged, the present application uses a second electric cylinder to control the telescopic plate to rise and fall through the shaking assembly, so that the telescopic plate and the shaking plate can be stored or unfolded. When the telescopic plate and the shaking plate are unfolded upward, the top of the chassis can be covered, thereby reducing the entry of rainwater into the interior of the equipment. When the shaking plate and the telescopic plate are stored, the contact between the telescopic plate and the extrusion block allows the shaking plate to drop the material to be crushed downward by shaking, which not only reduces the entry of rainwater into the interior of the equipment, but also enables the shaking assembly and the crushing assembly to cooperate with each other to load materials through structural changes;

[0024] 3. Through the cooperation of the shaking component and the crushing component, when the low material level sensor detects that the material is at the lowest level, the connecting arc plate is powered off and demagnetized. At this time, the positioning rod inside the crushing roller will automatically adsorb to the positioning hole on the top, thereby stopping and fixing the crushing roller, realizing automatic control of the stopping and starting of the equipment according to the height of the material;

[0025] 4. The crushing assembly is arranged to cooperate with the first electric cylinder, and the first electric cylinder is used to control the driving rod to move inward. At this time, the crushing roller rotates, and the telescopic block is expanded outward by centrifugal force and the telescopic block and the limit step ring are engaged with each other to limit the position. When the extrusion block encounters a fault and gets stuck, the crushing roller will stop rotating. At this time, the telescopic block will automatically reset and fit to the surface of the driving rod under the action of magnetic attraction. At this time, the bottom of the extrusion block loses its restriction and will automatically retract to make way. When the extrusion block gets stuck and stops rotating, it will automatically make way and shrink, thereby preventing the equipment from overloading and solving the problem of long overload protection retreat delay time in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a crusher with adjustable crushing roller gap provided in the present application;

[0027] Figure 2 A top view of a crusher with adjustable crushing roller gap provided in the present application;

[0028] Figure 3 A schematic diagram of the internal structure of a crusher with adjustable crushing roller gap provided in the present application;

[0029] Figure 4 A schematic diagram of the matching structure of a crushing roller of a crusher with an adjustable crushing roller gap provided in the present application;

[0030] Figure 5 A schematic diagram of the decomposed structure of a crushing roller of a crusher with an adjustable crushing roller gap provided in the present application;

[0031] Figure 6A schematic diagram of the exploded structure of an extrusion block and a drive rod of a crusher with an adjustable crushing roller gap provided in the present application;

[0032] Figure 7 A schematic diagram of the structure of an extrusion block of a crusher with adjustable crushing roller gap provided in the present application;

[0033] Figure 8 A schematic diagram of the decomposed structure of a crushing roller and a driving rod of a crusher with an adjustable crushing roller gap provided in the present application;

[0034] Fig. 9 An exploded sectional view of a crushing roller of a crusher with an adjustable crushing roller gap provided in the present application.

[0035] Indicated in the figure:

[0036] 1. Chassis; 101. Base; 102. Low material level sensor; 104. First electric cylinder; 105. Top plate; 106. Fixed block; 107. Motor; 108. Transmission assembly;

[0037] 2. Shaking assembly; 201. Unloading side seat; 202. Shaking plate; 203. Telescopic plate; 204. Second electric cylinder; 205. Connecting arc plate;

[0038] 3. Crushing assembly; 301. Crushing roller; 302. Mounting groove; 303. Extrusion block; 304. Groove; 305. Reset spring; 306. Docking groove; 307. Driving rod; 308. Extrusion plate; 309. Connecting ring; 310. Limiting step ring; 311. Telescopic groove; 312. Positioning rod; 313. Telescopic block. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] As described in the background technology, manual or spiral mechanisms adjust the roller gap by adjusting the position of the crusher's movable rollers. This requires high labor intensity for workers, inaccurate roller gap control, and unstable system operation. It is particularly unsuitable for workplaces where the crusher's output particle size often changes.

[0041] In order to solve this technical problem, the present invention provides a crusher with adjustable crushing roller gap, which is used for adjusting the crushing roller gap.

[0042] Specifically, please refer to Figure 1-9 A crusher with adjustable crushing roller gap specifically includes a chassis 1, a transmission assembly 108 is fixedly installed on the back of the chassis 1, a motor 107 is fixedly installed on the outside of the transmission assembly 108, a base 101 is fixedly installed on the bottom of the chassis 1, a low material level sensor 102 is provided in the middle of the inner cavity wall of the chassis 1, a pair of crushing assemblies 3 are rotatably installed in the middle of the inner cavity of the chassis 1, a first electric cylinder 104 is fixedly installed on the front of the chassis 1, a top plate 105 is fixedly installed at the telescopic end of the first electric cylinder 104, fixed blocks 106 are symmetrically provided on both sides of the first electric cylinder 104 and fixedly installed on the front of the chassis 1, and a connecting ring 309 is fixedly connected to the inner side of the fixed block 106;

[0043] The crushing assembly 3 includes two crushing rollers 301, and the crushing rollers 301 are provided with mounting grooves 302 in an array on the circumferential surface thereof, and the mounting grooves 302 are slidably engaged with extrusion blocks 303 in a sliding manner, and the extrusion blocks 303 are connected to the mounting grooves 302 through return springs 305 and support the extrusion blocks 303 inwardly, and a driving rod 307 is slidably sleeved in the middle of the crushing roller 301, and an extrusion plate 308 is provided in an array on the circumferential surface of the driving rod 307, and a docking groove 306 is provided at the bottom of the extrusion block 303, and the extrusion plate 308 is slidably engaged with the inner side of the docking groove 306, and the crushing rollers 301 are rotatably sleeved on the outer side of the connecting ring 309, and the outer ends of the two driving rods 307 are rotatably connected to the rods on the inner sides of the two ends of the top plate 105 through bearings;

[0044] The transmission assembly 108 is in transmission connection with the two crushing rollers 301 , and the top plate 105 drives the driving rod 307 to move inward, and squeezes the squeezing block 303 outward through the squeezing plate 308 , so that the distance between the squeezing blocks 303 of two adjacent crushing assemblies 3 can be finely adjusted.

[0045] The present invention provides a crusher with adjustable crushing roller gap. In order to solve the problems in the prior art of adjusting the roller gap by manual or spiral mechanism through adjusting the position of the crusher's movable roller to achieve roller gap adjustment, the labor intensity of workers is high, the roller gap control is not accurate, the system operation is unstable, and it is particularly not suitable for workplaces where the crusher's discharge particle size often changes. The present application uses the first electric cylinder 104 to drive the drive rod 307 in the crushing component 3 to move, so that the drive rod 307 squeezes the extrusion block 303, so that the extrusion block 303 extends outward, and then adjusts the distance between two adjacent extrusion blocks 303, and adjusts the distance between the crushing rollers by adjusting the height of the protrusion, thereby achieving fine-tuning, and the crusher's discharge particle size can be adjusted according to demand.

[0046] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0047] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0049] Example 1, please refer to Figure 1-2 , Figure 4-9 A crusher with adjustable crushing roller gap, comprising a chassis 1, a transmission assembly 108 is fixedly installed on the back of the chassis 1, a motor 107 is fixedly installed on the outside of the transmission assembly 108, a base 101 is fixedly installed on the bottom of the chassis 1, a low material level sensor 102 is provided in the middle of the inner cavity wall of the chassis 1, a pair of crushing assemblies 3 are rotatably installed in the middle of the inner cavity of the chassis 1, a first electric cylinder 104 is fixedly installed on the front of the chassis 1, a top plate 105 is fixedly installed at the telescopic end of the first electric cylinder 104, fixed blocks 106 are symmetrically provided on both sides of the first electric cylinder 104 and fixedly installed on the front of the chassis 1, and a connecting ring 309 is fixedly connected to the inner side of the fixed block 106;

[0050] The crushing assembly 3 includes two crushing rollers 301, and the crushing rollers 301 are provided with mounting grooves 302 in an array on the circumferential surface thereof, and the mounting grooves 302 are slidably engaged with extrusion blocks 303 in a sliding manner, and the extrusion blocks 303 are connected to the mounting grooves 302 through return springs 305 and support the extrusion blocks 303 inwardly, and a driving rod 307 is slidably sleeved in the middle of the crushing roller 301, and an extrusion plate 308 is provided in an array on the circumferential surface of the driving rod 307, and a docking groove 306 is provided at the bottom of the extrusion block 303, and the extrusion plate 308 is slidably engaged with the inner side of the docking groove 306, and the crushing rollers 301 are rotatably sleeved on the outer side of the connecting ring 309, and the outer ends of the two driving rods 307 are rotatably connected to the rods on the inner sides of the two ends of the top plate 105 through bearings;

[0051] The transmission assembly 108 is in transmission connection with the two crushing rollers 301, and the first electric cylinder 104 drives the top plate 105 to control the driving rod 307 to move inward, and the extrusion block 303 is squeezed outward through the extrusion plate 308, so that the distance between the extrusion blocks 303 of two adjacent crushing assemblies 3 can be finely adjusted;

[0052] A groove 304 is formed in the middle of the extrusion block 303, a return spring 305 is fixedly connected inside the groove 304, and the other end of the return spring 305 is fixedly connected inside the mounting groove 302 formed on the surface of the crushing roller 301;

[0053] A limit step ring 310 is fixedly installed on the inner side of the connecting ring 309, and one end of the driving rod 307 close to the connecting ring 309 is located on the inner side of the connecting ring 309 and is provided with a telescopic block 313. The extrusion plate 308 is magnetic and attracts the telescopic block 313 inward. The telescopic block 313 extends outward under the action of centrifugal force and is engaged with the inner side of the limit step ring 310.

[0054] A U-shaped telescopic groove 311 is provided in a circumferential array on the surface of the crushing roller 301, and a positioning rod 312 is provided inside the telescopic groove 311. The positioning rod 312 is adapted to the shape and size of the telescopic groove 311. A fixing hole is provided on the top of the side of the chassis 1 that is rotatably engaged with the crushing roller 301 and is adapted to engage with the positioning rod 312.

[0055] The positioning rod 312 is magnetic and is always engaged in the fixing hole at the top under the action of magnetic attraction to fix the crushing roller 301. The driving rod 307 is controlled by the first electric cylinder 104 to move the telescopic block 313 inward synchronously, and the extrusion block 303 is pushed outward, so as to adjust the protrusion height of the extrusion block 303, and then fine-tune the distance between the two crushing rollers. When the driving rod 307 rotates, the telescopic block 313 will automatically expand outward under the action of centrifugal force, and the telescopic block 313 will be engaged with the inner side of the limiting step ring 310, so as to limit the driving rod 307 and adjust the first The electric cylinder 104 is depressurized to prevent the first electric cylinder 104 from being damaged due to long-term operation. When the crushing roller 301 starts to rotate, the first electric cylinder 104 can stop working through the limit of the telescopic block 313, and can retreat autonomously in cooperation with the extrusion block 303 when encountering a locking problem. When the driving rod 307 stops rotating, the telescopic block 313 loses centrifugal force and under the adsorption effect of the driving rod 307, at the moment of shutdown, the telescopic block 313 will automatically reset and fit to the surface of the driving rod 307, and make the extrusion block 303 automatically retract under the action of pressure, thereby preventing the equipment from being overloaded and damaged.

[0056] In order to solve the problems in the prior art of adjusting the position of the crusher's movable roller by manual or spiral mechanism to adjust the roller gap, which results in high labor intensity for workers, inaccurate roller gap control, unstable system operation, and is particularly unsuitable for workplaces where the crusher's discharge particle size often changes, the present application uses the first electric cylinder 104 to drive the drive rod 307 in the crushing assembly 3 to move, so that the drive rod 307 squeezes the extrusion block 303, so that the extrusion block 303 extends outward, and then adjusts the distance between two adjacent extrusion blocks 303, and adjusts the distance between the crushing rollers by adjusting the height of the extrusion block 303, thereby achieving fine-tuning, and thus the crusher's discharge particle size can be adjusted according to demand;

[0057] Specifically, the crushing assembly 3 is provided to cooperate with the first electric cylinder 104, and the first electric cylinder 104 is used to control the top plate 105 to move inward to drive the driving rod 307 to move inward. At this time, the crushing roller 301 rotates, and the telescopic block 313 is expanded outward by centrifugal force, and the telescopic block 313 and the limiting step ring 310 are engaged with each other to limit. When the extrusion block 303 encounters a fault and gets stuck, the crushing roller 301 will stop rotating. At this time, the telescopic block 313 will automatically reset and fit to the surface of the driving rod 307 under the action of magnetic attraction. At this time, the bottom of the extrusion block 303 loses its restriction and will automatically retract to give way, so that when the extrusion block 303 gets stuck and stops rotating, it will automatically give way and shrink, thereby preventing the equipment from being overloaded, and solving the problem of too long overload protection retreat delay time in the prior art.

[0058] Example 2, a crusher with adjustable crushing roller gap provided in Example 1 is further optimized, specifically, as follows Figure 1-3 , Figure 8-9 As shown, shaking components 2 are provided on both sides of the crushing component 3, and the shaking component 2 includes two material discharge side seats 201, and the two material discharge side seats 201 are respectively fixedly installed on both sides of the inner cavity of the chassis 1, and the top of the material discharge side seat 201 is movably hinged with a shaking plate 202, and the bottom end of the shaking plate 202 is overlapped on the surface of the crushing component 3, and the bottom of the shaking plate 202 is slidably connected with a telescopic plate 203, and a second electric cylinder 204 is inclined in the middle of the inner cavity of the material discharge side seat 201, and the top of the second electric cylinder 204 is movably hinged to the bottom of the telescopic plate 203, and the inner side of the telescopic plate 203 is movably hinged with a pair of connecting arc plates 205, and two adjacent connecting arc plates 205 are movably hinged, and the connecting arc plates 205 are electromagnets, and the connecting arc plates 205 sink and fit on the surface of the crushing roller 301 And it contacts with the positioning rod 312 inside the crushing roller 301, and the connecting arc plate 205 sinks to the bottom to generate the same magnetism as the positioning rod 312, which repels the positioning rod 312 downward, thereby automatically controlling the rotation and stop of the crushing roller 301, and the second electric cylinder 204 extends out to control the shaking plate 202 to move upward and unfold, so that the telescopic plate 203 slides upward, extends and unfolds, so that the telescopic plate 203 and the shaking plate 202 are unfolded to have a sufficient width to cover the top of the chassis 1, and the telescopic plate 203 is controlled by the second electric cylinder 204 to be raised and lowered, thereby adjusting the states of the shaking plate 202 and the telescopic plate 203, so that it appears as a shaking plate for unloading or when it stops being used, it acts as a baffle to block rainwater to reduce rainwater from entering the interior of the equipment and causing rust to the parts inside the equipment.

[0059] In order to solve the problem in the prior art that the equipment is placed outdoors for a long time and a large amount of rainwater enters the equipment in rainy weather, causing the parts in the equipment to rust and be damaged, the present application uses the second electric cylinder 204 to control the telescopic plate 203 to rise and fall through the shaking plate 202 by setting the shaking component 2, so that the telescopic plate 203 and the shaking plate 202 can be stored or unfolded, and the telescopic plate 203 is slidably connected to the bottom of the shaking plate 202. When the telescopic plate 203 and the shaking plate 202 are unfolded upward, the second electric cylinder 204 first controls the telescopic plate 203 and the shaking plate 202 to be lifted as a whole, and then in the process of the second electric cylinder 204 continuing to extend, the telescopic plate 203 is lifted and lowered. 03 extends out from the bottom of the shaking plate 202, and makes the connecting arc plate 205 connected between the two telescopic plates 203 bend inward, at this time, the tops of the two extended telescopic plates 203 are merged together, which can cover the top of the chassis 1, thereby reducing the rainwater from entering the interior of the equipment. When the shaking plate 202 and the telescopic plate 203 are stored, the telescopic plate 203 is in contact with the extrusion block 303, so that the shaking plate 202 can drop the material to be crushed downward by shaking, which not only reduces the rainwater from entering the interior of the equipment, but also enables the shaking component 2 and the crushing component 3 to cooperate with each other for loading after the structural change.

[0060] The use process and technical solution of a crusher with adjustable crushing roller gap provided by the present invention are as follows:

[0061] First, the telescopic plate 203 and the shaking plate 202 are folded and dropped to the bottom to fit on the top of the extrusion block 303 through the second electric cylinder 204, and the material is placed on the top of the chassis 1. At this time, the connecting arc plate 205 fits on the top of the crushing roller 301, and the connecting arc plate 205 is electrified and magnetically conductive, so that the positioning rod 312 moves downward and detaches from the inner wall of the chassis 1, and then the top plate 105 is controlled by the first electric cylinder 104 to drive the driving rod 307 to move, so that the driving rod 307 drives the extrusion block 303 to expand and contract, thereby adjusting the distance between the two crushing rollers, thereby To achieve fine adjustment, when the driving rod 307 rotates, the telescopic block 313 automatically expands under the action of centrifugal force, and limits and fixes the limit step ring 310, thereby relieving the pressure of the first electric cylinder 104. Since the extrusion block 303 is stuck, when the driving rod 307 stops rotating, the telescopic block 313 loses the effect of centrifugal force at the moment of stopping, and under the magnetic adsorption of the driving rod 307, it will automatically reset and fit to the surface of the driving rod 307. At this time, the extrusion block 303 loses the limit and automatically shrinks, thereby performing overload concession, which protects the equipment;

[0062] By setting up the shaking component 2, the second electric cylinder 204 is used to control the telescopic plate 203 to move up and down, so that the telescopic plate 203 and the shaking plate 202 can be stored or unfolded. When the telescopic plate 203 and the shaking plate 202 are unfolded upward, the top of the chassis 1 can be covered, thereby reducing the rainwater from entering the interior of the equipment. After the shaking plate 202 and the telescopic plate 203 are stored, the contact between the telescopic plate 203 and the extrusion block 303 allows the shaking plate 202 to shake and drop the material to be crushed downward, thereby not only reducing the rainwater from entering the interior of the equipment, but also enabling the shaking component 2 and the crushing component 3 to cooperate with each other to load the material through structural changes.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A crusher with adjustable crushing roller gap, comprising a chassis (1), a transmission assembly (108) fixedly mounted on the back of the chassis (1), a motor (107) fixedly mounted on the outside of the transmission assembly (108), a base (101) fixedly mounted on the bottom of the chassis (1), a low material level sensor (102) provided in the middle of an inner cavity wall of the chassis (1), characterized in that: A pair of crushing assemblies (3) are rotatably mounted in the middle of the inner cavity of the chassis (1); a first electric cylinder (104) is fixedly mounted on the front of the chassis (1); a top plate (105) is fixedly mounted on the telescopic end of the first electric cylinder (104); fixed blocks (106) are symmetrically provided on both sides of the first electric cylinder (104) and are fixedly mounted on the front of the chassis (1); a connecting ring (309) is fixedly connected to the inner side of the fixed block (106); The crushing assembly (3) comprises two crushing rollers (301), the crushing rollers (301) are provided with mounting grooves (302) in an array on a circumferential surface, the mounting grooves (302) are slidably engaged with extrusion blocks (303) in their interior, the extrusion blocks (303) are connected to the mounting grooves (302) via return springs (305) and support the extrusion blocks (303) inwardly, a driving rod (307) is slidably sleeved in the middle of the crushing rollers (301), the driving rods (307) are provided with extrusion plates (308) in an array on a circumferential surface, a docking groove (306) is provided at the bottom of the extrusion blocks (303), the extrusion plates (308) are slidably engaged with the inner side of the docking grooves (306), the crushing rollers (301) are rotatably sleeved on the outer side of a connecting ring (309), and the outer ends of the two driving rods (307) are rotatably connected to rods on the inner sides of two ends of the top plate (105) via bearings; The transmission assembly (108) is in transmission connection with the two crushing rollers (301), and the top plate (105) drives the driving rod (307) to move inward, and squeezes the squeezing block (303) outward through the squeezing plate (308), so that the distance between the squeezing blocks (303) between two adjacent crushing assemblies (3) can be finely adjusted.

2. A crusher with adjustable crushing roller gap according to claim 1, characterized in that: A groove (304) is provided in the middle of the extrusion block (303), the return spring (305) is fixedly connected inside the groove (304), and the other end of the return spring (305) is fixedly connected inside a mounting groove (302) provided on the surface of the crushing roller (301).

3. A crusher with adjustable crushing roller gap according to claim 2, characterized in that: A limit step ring (310) is fixedly installed on the inner side of the connecting ring (309); one end of the driving rod (307) close to the connecting ring (309) is located on the inner side of the connecting ring (309); a telescopic block (313) is provided on the sliding sleeve; the extrusion plate (308) is magnetic and attracts the telescopic block (313) inward; the telescopic block (313) extends outward under the action of centrifugal force and is engaged with the inner side of the limit step ring (310).

4. A crusher with adjustable crushing roller gap according to claim 3, characterized in that: A U-shaped telescopic groove (311) is provided in a circumferential array on the surface of the crushing roller (301), a positioning rod (312) is provided inside the telescopic groove (311), and the positioning rod (312) is adapted to the shape and size of the telescopic groove (311), and a fixing hole is provided on the top of the side surface of the chassis (1) for rotatably engaging the crushing roller (301) and adapted to engage with the positioning rod (312).

5. A crusher with adjustable crushing roller gap according to claim 4, characterized in that: The positioning rod (312) is magnetic and is always engaged in the fixing hole at the top under the action of magnetic attraction to fix the crushing roller (301).

6. A crusher with adjustable crushing roller gap according to claim 5, characterized in that: A shaking assembly (2) is provided on both sides of the crushing assembly (3), and the shaking assembly (2) includes two material discharge side seats (201). The two material discharge side seats (201) are respectively fixedly mounted on both sides of the inner cavity of the chassis (1), and a shaking plate (202) is movably hinged on the top of the material discharge side seat (201), and the bottom end of the shaking plate (202) overlaps the surface of the crushing assembly (3).

7. A crusher with adjustable crushing roller gap according to claim 6, characterized in that: The bottom of the shaking plate (202) is slidably connected with a telescopic plate (203), and a second electric cylinder (204) is obliquely provided in the middle of the inner cavity of the unloading side seat (201). The top of the second electric cylinder (204) is movably hinged to the bottom of the telescopic plate (203), and a pair of connecting arc plates (205) are movably hinged on the inner side of the telescopic plate (203), and two adjacent connecting arc plates (205) are movably hinged.

8. A crusher with adjustable crushing roller gap according to claim 7, characterized in that: The connecting arc plate (205) is an electromagnet. The connecting arc plate (205) sinks to fit on the surface of the crushing roller (301) and contacts the positioning rod (312) inside the crushing roller (301). The connecting arc plate (205) sinks to the bottom and generates the same magnetism as the positioning rod (312), which repels the positioning rod (312) downward, thereby automatically controlling the rotation and stop of the crushing roller (301).

9. A crusher with adjustable crushing roller gap according to claim 8, characterized in that: The second electric cylinder (204) extends to control the shaking plate (202) to move upward and unfold, causing the telescopic plate (203) to slide upward, extend and unfold, so that the telescopic plate (203) and the shaking plate (202) are wide enough to cover the top of the chassis (1) after unfolding.

10. A crusher with adjustable crushing roller gap according to claim 9, characterized in that: When the crushing roller (301) rotates, it drives the driving rod (307) to rotate synchronously with the telescopic block (313). The telescopic block (313) automatically extends outward under the action of centrifugal force. When the driving rod (307) stops rotating, the telescopic block (313) automatically adheres to the surface of the driving rod (307) under the magnetic attraction of the driving rod (307).

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